Fluval Nano Bio-Foam, 2pcs (current pkg is yellow/gold in color)

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Tailored for the Fluval Nano filter (Item #A455), this Bio-Foam effectively captures debris to ensure superior mechanical filtration. High-quality mechanical filter media Custom fi t within the filter chamber to block debris leakage Optimal pore structure promotes smooth water flow, reduces blockages, and ensures durable filtration Expansive surface area supports the proliferation of helpful nitrifying bacteria Precisely crafted for the Fluval Nano FilterPerfect for use in freshwater setups Show more